Question

question 15 (1 point)
the role of atp in the sodium - potassium pump is
to transfer na⁺ to the inside of a cell.
to assist a na⁺ to bind to a carbohydrate.
to assist a cell to release na⁺ by exocytosis.
to transfer na⁺ to the outside of a cell.
to assist a cell to take up na⁺ by endocytosis.

Explanation:

The sodium - potassium pump uses the energy from ATP hydrolysis. It actively transports 3 Na⁺ ions out of the cell and 2 K⁺ ions into the cell against their concentration gradients.

Answer:

to transfer Na⁺ to the outside of a cell.